The Seven Year Old Child Has No Representative!

There is always a Martin Luther King or a Malcolm X to be found, who will defend the rights of the blacks, because they were from this social class. There's always a Simone de Beauvoir or an Inessa Armand to be found, who will defend women's rights, because they themselves were women. There are always workpeople to be found who will defend their own rights. But who will defend the rights of children?
Is it expected that a seven year old child becomes the representative of children's rights?!
The Congress doesn't speak on behalf of children because children don't have the right to vote. The congress defends the rights and benefits of those who vote and pay taxes. We vote on instead of children, we make decisions instead of them.
So, aren't we responsible?
Homosexuals defend the recognition of marriage right for their own class. Also, they defend the recognition of their capacity to gain, adoption right. Some think, that this request of gays comes from human rights.
Article 16 of the universal declaration of Human Rights states the following on marriage:

1. Men and women of full age, without any limitation due to race, nationality or religion have the right to marry and to found a family. They are entitled to equal rights as to marriage, during marriage and at its dissolution.
2. Marriage shall be entered into only with the free and full consent of the intending spouses.
3. The family is the natural and fundamental group unit of society and is entitled to protection by society and the State.

Interpretation: making a family is the right of every man and woman. Definition of family according to paragraph 3 of this article: “Family is the natural and fundamental group unit of the society.”
What does "fundamental group" mean?
That means a group which creates a generation.
Can a group of two men, or two women, be a generation creator?!
No, it can't. Then article 16 of this declaration has only recognized the creation of family and marriage, only in the limit of a relationship between a woman and a man.  
But article 25 of this declaration strictly states the following on standard of living:  

1. Everyone has the right to a standard of living adequate for the health and well being of himself and of his family, including food, clothing, housing and medical care and necessary social services, and the right to security in the event of unemployment, sickness, disability, widowhood, old age or other lack of livelihood in circumstances beyond his control.
2. Motherhood and childhood are entitled to special care and assistance. All children, whether born in or out of wedlock, shall enjoy the same social protection.

So, is giving an orphan child, to two men or two women, in alignment with the accepted standard of society?! 
Have you ever encountered a child who lives with a group consisting of two men or two women?!  
Human rights, never opposes Human Rights. If in a society, Human rights destroy the rights of children then definitely as Hannah Arendt had said, "Social Totalitarianism" becomes dominant.